Packing-ring.



Patented Feb. 24, 1914;.

WITNESSES,

W A Tnup j ioiaiioirnn P FACKING-IFAING.

- Application file l November 5, 1912.

To all it'lmm it may 001mm);

lio it known that l, llAlIRY ll'. Glenn, a vitizon of the United States, residing in the i-ity of Jolinstown, in the county of Caniln'ia and State ofPennsylvania, have invent- ((l si'tain new anti usainl improvements in l acliingllingxg and l l0 hereby declare the irrlll'xwing to be a fall, iloai', and exact alt s'wiiniion oi tln', imcntion, Slllll as will on;

able others skilled in the alt to which it; apt'l'lzlllls to Hltlli-L and use the sainin My invention relates to paiking -z'inga it Hll'l't mnm-ially to nwtallii: spring planking} rings, For pistons of ilniil -ll1LHHlllt, nngzinos, pumps amt the like. i

Una of tho olijct-ts of my invention is to provide a. combination spring packing-ring for this purpose wliiuh is simple in constmiolion, (ll m to lllllllllftllflllliF, which. will maintain at alitimvs a tight, but resilient fit i30 twovn tin piston and tho Wall of tlie Cylin- (ltl' without giving nmlno or frictional r0- blatant-v against the wall. and adapted to antmnaiit-ally alljnat itself as the Contact sin-lawns become worn. I

l have fonnil that the customaisimple (not ii on spring ninrking-rings in engine pis- 1mm :Ht i'z'taqnvntly ln'ukon into pivt'vs, pariiunlax'ly in condonsiiig onginos, in which the clit l'vi-vnz-v in llm alternating pressures on upmsito Atlrs'oi' the pinion in marliwl. l: have tlissoi'v 'oil that i lltlt't! customary simple cast. iron s n-innyanking-rings an often broken in use by slapping againsl tlio vylinilur Jails, or agaii'isi' .i lit 'l'GHVQS in til-a piston head, the slappin not 11;; ('ansml by the sudden ievarsal ilnitl, orassnres the piston to tho other, and nncloi certain conditions by the reversing movement of the piston at the ends of its stroke. consider, however that most of the breakage of the customary cast; iron piston rings, and the consequent trouble, such as cutting themselves and the cylinder walls, icalmge, em, isdne to the slapping: action mnsetl the sntlrlen ruvorsal oli' pressl'ii'e at. the ends of the stroke oi? the, piston and to t ,essive pressnrres caused thereby oi otherwise. During the operation of a finicl pressure engine, especially of tho (-ondvnsing typo, a vacuum or partial vamnnn Hints on one Side of the piston at. in' about the tinm ilie initinl m i-mnnrvasiva PEtHHHYfH 11H ilifllitfii on lilfi ntiim' siiela of {no piston, illlf-E ios'itiiliion in wi'niaotl of; Hil moval its piston Specification of Letters Fatmi'k,

'on. the piston rings which contracts from one side of Fzytroitteol lliroln Ell, it

Serial No. 730,155.

varies during its cycle of n'zot-ion. tliei-e'lore, Panses pressure from the. o:

and than a pressure 5mm the insitle "Wl'i expands tin-1n violently with the clesti'ruct. action. above noted.

Another object of my invention in l Want the slapping retorreol to, by inai leot the Wain 1g 01 packingq' more out spring rings preferably "If? that the joints thereof are in. an. iation with that of the meeting '1 i paaliingq'ing, While lugs 0.1." ot leia suit means are provided. to maintain the their relative circumferential The outer or packing-ring cannot without, simil rly contracting, 0?. rationing the diameter and airmnni'ferenoo of each inner spring ring, and each ring must ing the time of its contraction, slide on N3 each of the adjoining rings at all points. This frictional resistance, on account oi? clamping action, is greater (lin'ii'ig the conli-aclingg movement tnan during the expansiing movemont, out by reason 0'1 in non- :etim-tion it i=-, anii'n'ient at, all timos to ma elude any i'iolent alapping; of the againstv t aoli other, or the enter one against the cylinder Wall. l

A fin-theiobject of my inmntion maid in the manner of arranging inner esprit ring; and an. outer packing Ting, who? ilmir ontor anal inner surfaces Mo suboi n tially concentric with we piston anti o n? tier, while their contactsmfaoes are eoeen- W1 onto packing-ring of cast iron and inner ring: of rings of tempered sparing although other suitable matoriala fanny no M3 used, it tlcsirtrd'.

Having tlins 22 this general domain tion of 11W invention, it will now, in fir flfi i. to make more clear, rote com'panyim: of (lrawingn f0: of this sot-oilication atni in which min-mm characters rotor to, 'aor'iresponclinyz part Figure l is a fiianna'tml trans'vorc lion, of a piston umbrella t; portion of the pistoiyi'otl alevaa. nenteil thereto, 'sliowing my imnim. tallio spring" nciting-ring cross r mounted Wl'lllifl tho Ifiifilhllifi ggrooy nationals around the periphery oi ti Fig. 3 a transvorw section man Six,

scale of the spring ring and peeking-ring when on the line .A-fii of Fig. 4: through the overlapping meeting encls oi the packing-ring and the thickest, portion of the spring ring. Fig". 3 is a transverse section on an enlarged scale of the spring ring and pecking-ring taken on the line B-B of Fig. showing the channel and rib cenneo tion between the split spring and packing lo ring. Fig. lis a side elevation showing the geueiel'iorm of my improved packing-ring, the spring ring and the packing-ring each being;- of varyingthickness, the thinnesi portions of which are at their ends, While the cuts of the spring are diametrically opposite those of the packing-ring. The construction illustrated in Fig. 4: corresponds to that further illustrated in Figs. 1, 2 and h l ore mentioned. Fig. 5 is e side elevation illustrating another form. of my inn'l.ion-in which a plurality of spring; rings ore used, c: ch of which is of substantially the same thickness throughout. its length, mounted ci'uicentricelly in'layers Within the outside packing-ring, which, as illustrated in. this case. is also of uniform thickness througlnmt its length. Fig. 6 is an edge view of a portion of the paclzingofing showing the overlapping scarfecl. meeting so ends of the packing-ring with parts thereof broken away to more clearly illustrate the construction for holding: the spring: ring and the packin rring in the desired relative posi ions. is a detail fragmentar side Fig. l elt'cvution on an enlarged scale, of the spring; rings and packing-ring, illustrated in Fig. -43 sl'lowlng the stop pin for hol ling the plu- 'elity of spring rings in. the desired nosition c-i cuiufercntielly within the packingring. 8 is a transverse section on an enlarged scale taken on the line C-C of Referring now to I igs. 1,2, l and. 6 encl the various characters of reference 4;) thereon :1 designates a piston to which is :lll'z'U'llwl centrally in any approved manner, the piston-rod 2. An annular groove is formed around the pcriohery of the piston ir a'vhich is mounted the pecliingo'ing \li'ill this i-acmng'mmg 1:; an inner spring incmhcr 5. Between lhe bottom of the groove l and the adjoining" surface of the icr sprin zra'ing a narrow space 6 is prowit-d to allow limitccl clearance and move of the rings. The outer or melons "l prefi-zml'lly COYHDOSQKl. of compare soft, smooth Wearing metal, such iron of proper quality, although any suitable material may he used, if (le- "llm entls 7 preferably overlap as shown, being: cut longitudinally of the peel:- ring: l as at 8 and. transversely as at 9 L!) lorm e scer'lccl joint, although square, tamed. or other form of juncture may he used. The spring ring and the packing-ring are eccentrieelly mounted together and the spring ring is provided with a channel in its outer periphery us at 10 which extends nearly around its entire circumference, into ,which projects the rib 11 formed on the inside of the peeking-ring as shown. The spring ring 5 and the puckingoring -'l are of tapered construction, each being prefer ably thinnest at its ends and gradually increasing in thickness to the opposite sides thereof shown, and the en ls of the uncle lIl lZ-lll'l}! preferably opposite. or in staggered relation with. the-ends of the spring ring, to provide proper joint and coo'pclw tion of these ports. The thicker central per tien of the spring ring is not channeled ,wbut

inacle solid of rectangular section, thereby forming; ahui'ments 12 at the ends of the channel which prevent. by contact, with the ends of the rib ll. relative eircuni'liercntiol movement to any great extent. whereby the rings are maintained in proper positions with respect. to each other.

In Figs. 7 and S l have illust'mted aslightly different. form of :1 sWing-controlled packinging. but embracing substantially the same principles. in this form a plu relitay of split circular springs 13 are used, and in these figuresthree springs are Shown, although this numb cr may be varied, as (lesirecl. Each of these springs 13 is of substantially uniform thickness. and is mounted within the packing-ring 14 which also of uniform thickness tlr'oughout, but. preferably thicker than the spring rings. These rings, however, nuiy be of tapering thickness, if desired. This packing ring has jointed ends 7 similar to-the one previously described. The intermediate spring: ring and the jointed ends 7 of the packing-ring member are shown to be located on the some side of the piston, while the outer and inner spring" rings have their ends on the opposite side thereof, as indicated. A pin 15 has its intermediate portion secured in a hole provirlecl therefor in the central spring ring and the ends of said pin extend ou'either side thereof and project between the ends of the inner incl outer spring members. One end of the said pin 15 enter socket or (leprossion 16 on the inside of the friction packingring member, thus preventing the differentiarts from changing their relative circumferential positions within limits.

It will he understood that the normal tendency of the spring rings in either rlesigu is to expand or increase the diameter and circumference of the packing-ring member when in use, so at, all times to form a. tight joint between the piston. and the inner Wall of the cylinder, and although I have snown and described a piston with only one aching-ring, more can he used, if desired.

, I do not It has been. custoi'nei'y, in some cases,to lEOl'lil the outer circumferential grooves piston heotls which receive the packing rings, by making them of somewhat greater Width than the pecking-ring, K otherwise providing thein with small communicating grooves OI' openings whereby steam or fluiel under pressure can have ready oocess to the space between the bottom-oi the grooves in the piston and the inner surfaces of the Jackin rin s. and thercb 1 not lo Y oressure' b b I J.

in setting out the packing-rings against, the cylinder wall. I, however, prefer to make the annular groove din the piston only very slightly wider than. the rings which. fit with in them, in order to prevent excessive fluicl pressures between the ring'ond the piston, as rely upon this altogether for the action of my device.

in my design it is proposed to resist slapping of the packing-ring more by frictional resistmice than by spring pressure. Fig. 5 illustmtes 1 case where several split rings, with their ends oppositely disposed to each other, one en'iployetl. Due to this construo lion in which at number of springs are used, each of which has an outwartlly tending piessure, as above described, the spring rings will lily enpontlthe "friction pack-- ing-ring member into any cylinder Within their spring range, but will more strongly any contracting force tending to (11-- ininish their ciionietcrs 21ml circumference to an extent 01 degree approximately in proon with {he number of spring rings or iping and -l'l' icticuiol action between the sugoining surfaces oft the S'Ql'lilgfi which. n'iil more strongly resist any eiiort from. "the outside to contract or reduce the. diameter of said rings, and this is a. particular feature of my invention.

i i hile I have shown and descrihetl my inc-- vontion in considerable emu, 1 (lo not wish to he limited to the (lenils of construction specified, but only apply the some to otl'ici purposestlnin those stated herein, and Il may use such substitutions, equiv-sieois or olterdlions thereof, foil Witl'iin the scope of my ii'ivcntion, and set forth in the "ii t claim as new and desire to secure "v tors Potent isz pscliinguring provided with thicker ll'fill'il portions, comprising an outer W h sitlcivisc overlapping jointeii ends i a thence in both directions to the op positc thicker portion thereof, on inner to. period spring ring mounted Within said outer ring, the thickeroncl intermediate p02 Lion of said inner ring m ocent to the thinner end portions of the outer ring, and means for holciing sold sition.

This is caused by n cumulus.

rings in. relative po- ,the inner surface thereof, the thicker portion of which is adjacent to the joint in the outer ring" and its thinner ends opposite thereto, :1. tongue formedon the inner surface of the outer iing, a small portion of said. ring adjacent to the joint being unpro viclocl vith o tongue, corresponding groove formed on the outer surface of the inner spring ring, except at the thicker portion thereof enjoining the joint in-the outer ring aforesaid, forming an abutment on said inner ring adopted to contact- With the ends of the tongue aforesaid, whereby saiol rings are maintained. in ielntive position.

3. A. packing ring provided with thicker and thinner portions, comprising an outer ring the ends of which we scorfed and coals, on inner tapers l spring ring mounted within and ad to contact with said er sing, scicl inner ring being arranged with its thicker portion adjacent to the thin new and jointed ends of said outer ring, the thinner open ones of said spring ring being adjacent to the thicker portionof said outer ring, and means for holding saicl rings in relative position.

i. A packing-ring comprising an outer ring; provided with jointed ends, a plurality of classically expansive spring rings mounted therein, the adjoining eucls of which are in staggered relation with each other and. the in the outer ring, Where" by the spring rin s will tend to expend the outer ring, out will more stroiigly resist a contracting ii'oice iue to the frictional or clamping effect between the various contact surface I 5. A packing-ring comprising an outer ring of uniform rectangular section provide-cl, with jointed encls, a plurality of elastically expansive spring rings, each of rcctangulor cross section mounted therein, the adjoining ends of said s ring rings being in staggered elation Wiill each other and the joint in the outer ring, 2L recess formed in the inner surface oi the said outer ring, to pin mounted in the intermediate portion of one of said spring rings, projecting Within the said recess and between the opposing ends of the-other spring rings, whereby oi rings are mointained in relative positio 6. A piston provitledwith o circumferthinner nortione, mounted therein,-compristreating force, due to the frictional 01' 10 clamping effect between the oontaet surfaces. In testimony whereof I hereto ztfiix my signature in the presence of two witnesses.

HARRY R. GEEK.

ing an outer ringwith jointed ends,- on inher spring ring mounted within the outer ring aforesaid, the ends of said inner ring being in staggered relation with the joint of the outer ring,', and means for holding said rings in'proper mlative position, whereby the spring ring will tend to expand the outer ring, but will more strongly resist a con- Witnesses:

ELMER SEAVEY, ROBERT A. BEERS. 

